PURPOSE: To improve performance of a cell by detecting flow distribution in the direction of a cell stack with a pressure sensor and adjusting rotation of movable rectifier plates in a manifold of the air inlet side and by distributing air uniformly in the direction of the cell stack.
CONSTITUTION: A manifold 1 on the air inlet side mounted on the cell stack 3 is expanded in a funnel-shape in the direction of the cell stack and a plurality of movable rectifier plates 4 are rotatably supported therein. The supporting shafts 5 of these rectifier plates 4 are coupled to the small control motors with high torque such as a stepping motor and a servo motor. A plurality of pressure sensors 8 are arranged over the direction of the stack in a manifold 7 on the air outlet side, and the air flow rate at the portion is detected as wind pressure. These detecting signals are input in the controller to perform operation. That is, deviation from the mean value of respective pressure sensor detecting values is computed and predetermined signals are output depending on the magnitude of the deviation value. By these output signals, respective motors are driven to adjust the angles of movable rectifier plates 4.
HAGINO HIDEO
TAJIMA OSAMU
NISHIOKA MASATO
WASHIMI SHINGO
